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Standard library for the Scala Programming Language
/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.collection
package mutable
/** Classes that mix in the `Undoable` class provide an operation
* `undo` which can be used to undo the last operation.
*
* @author Matthias Zenger
* @version 1.0, 08/07/2003
* @since 1
*/
trait Undoable {
/** Undo the last operation.
*/
def undo(): Unit
}